Series returns this September

Later even than some of the voice actor were expecting, The Legend of Korra - Book 2: Spirits is now slated to kick off on Nickelodeon·this September. Beyond a new trailer for San Diego Comic Con, it was also announced that The Walking Dead's Steven Yeun joins the cast as Wan, the first Avatar, who story from 10,000 years in the past features into two episodes.

James Remar (Dexter) joins as Korra's father, Tonraq. Aubrey Plaza (Parks and Recreation) and Aaron Himelstein (Joan of Arcadia) play a pair of waterbending twins, while Lisa Edelstein (House) is Kya, Aang and Katara’s daughter.

------Scott Green is editor and reporter for anime and manga at geek entertainment site Ain't It Cool News. Follow him on Twitter at @aicnanime.